netdev - RE: [PATCH v3 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE

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Message-ID: <MW2PR2101MB1052F3454F1AAF4A5D9D0EE0D7250@MW2PR2101MB1052.namprd21.prod.outlook.com>
Date:   Sat, 12 Sep 2020 19:23:22 +0000
From:   Michael Kelley <mikelley@...rosoft.com>
To:     Boqun Feng <boqun.feng@...il.com>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
CC:     KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "will@...nel.org" <will@...nel.org>,
        "ardb@...nel.org" <ardb@...nel.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "Mark.Rutland@....com" <Mark.Rutland@....com>,
        "maz@...nel.org" <maz@...nel.org>
Subject: RE: [PATCH v3 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE
 for gpadl

From: Boqun Feng <boqun.feng@...il.com> Sent: Thursday, September 10, 2020 7:35 AM
> 
> Since the hypervisor always uses 4K as its page size, the size of PFNs
> used for gpadl should be HV_HYP_PAGE_SIZE rather than PAGE_SIZE, so
> adjust this accordingly as the preparation for supporting 16K/64K page
> size guests. No functional changes on x86, since PAGE_SIZE is always 4k
> (equals to HV_HYP_PAGE_SIZE).
> 
> Signed-off-by: Boqun Feng <boqun.feng@...il.com>
> ---
>  drivers/hv/channel.c | 13 +++++--------
>  1 file changed, 5 insertions(+), 8 deletions(-)
> 

Reviewed-by: Michael Kelley <mikelley@...rosoft.com>